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Pure Appl. Chem., 2006, Vol. 78, No. 2, pp. 391-396

Chiral Ru/PNNP complexes in catalytic and stoichiometric electrophilic O- and F-atom transfer to 1,3-dicarbonyl compounds

Cristina Bonaccorsi, Martin Althaus, Claus Becker, Antonio Togni and Antonio Mezzetti

Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland

Abstract: The asymmetric hydroxylation and fluorination catalyst [Ru(OEt2)2(PNNP)]2+ (PNNP = chiral tetradentate ligand with a P2N2 donor set) reacts with 1,3-dicarbonyl compounds to give dicationic adducts and, upon deprotonation, the corresponding enolato complexes. The relevance of these species to catalytic O- and F-transfer is investigated.